Extend and customize Drupal functionality with contributed modules.
If a module doesn't quite do what you want it to do, if you find a bug or have a suggestion, then join forces and help the module maintainer. Or, share your own by starting a new module.
Views Slideshow can be used to create a slideshow of any content (not just images) that can appear in a View. Powered by jQuery, it is heavily customizable: you may choose slideshow settings for each View you create.
Potential uses
News item slideshow (such as the title, image and teaser of the last 5 news articles submitted)
The Last X number of X submitted (images, videos, blog entries, forum posts, comments, testimonials, etc.).
Rotate any image, based on any filters you can apply in views.
Hottest new products for any ecommerce drupal site.
Rotate contact links, share links, etc.
Heck, you could rotate entire nodes, categories, image galleries, etc. I wouldn't suggest it, but you have that power.
Its also a great space saver. Places where you had multiple images or multiple items such as RSS feeds or category listings can now be presented in a slideshow.
The possibilities are really endless, as the more ways you can think of to categorize and add to views, the more you can rotate.
Provides one-way string transliteration (romanization) and cleans file names during upload by replacing unwanted characters.
Generally spoken, it takes Unicode text and tries to represent it in US-ASCII characters (universally displayable, unaccented characters) by attempting to transliterate the pronunciation expressed by the text in some other writing system to Roman letters.
A CAPTCHA is a challenge-response test most often placed within web forms to determine whether the user is human. The purpose of CAPTCHA is to block form submissions by spambots, which are automated scripts that post spam content everywhere they can. The CAPTCHA module provides this feature to virtually any user facing web form on a Drupal site.
Co-maintainer wanted
We do this our spare time, which is unfortunately almost nonexistent at the moment due to real life obligations. To give the CAPTCHA module the required level of maintenance, an extra co-maintainer would be welcome. If you're interested in helping with this very popular module, please contact me or open an issue in the CAPTCHA module issue tracker.
This module augments Views by allowing bulk operations to be executed on the displayed rows. It does so by showing a checkbox in front of each node, and adding a select box containing operations that can be applied. Drupal Core or Rules actions can be used.
The Panels module allows a site administrator to create customized layouts for multiple uses. At its core it is a drag and drop content manager that lets you visually design a layout and place content within that layout. Integration with other systems allows you to create nodes that use this, landing pages that use this, and even override system pages such as taxonomy and the node page so that you can customize the layout of your site with very fine grained permissions.
So other modules can know about your module's variables and they can be translated, exported, used in views, etc.
You'll get automatic variable edit forms, tokens, access control and uninstall for free
Your module's variables will be allowed for Variable Realms being able to get values for each language (Internationalization) or Domain (Variable Domain)
Context allows you to manage contextual conditions and reactions for different portions of your site. You can think of each context as representing a "section" of your site. For each context, you can choose the conditions that trigger this context to be active and choose different aspects of Drupal that should react to this active context.
Think of conditions as a set of rules that are checked during page load to see what context is active. Any reactions that are associated with active contexts are then fired.
Update: For Drupal 8 please use the redirect module. This project is deprecated for D8
What?
GlobalRedirect is a simple module which…
Checks the current URL for an alias and does a 301 redirect to it if it is not being used.
Checks the current URL for a trailing slash, removes it if present and repeats check 1 with the new request.
Checks if the current URL is the same as the site_frontpage and redirects to the frontpage if there is a match.
Checks if the Clean URLs feature is enabled and then checks the current URL is being accessed using the clean method rather than the 'unclean' method.
Checks access to the URL. If the user does not have access to the path, then no redirects are done. This helps avoid exposing private aliased node's.
Make sure the case of the URL being accessed is the same as the one set by the author/administrator. For example, if you set the alias "articles/cake-making" to node/123, then the user can access the alias with any combination of case.
Most of the above options are configurable in the settings page. In Drupal 5 you can access this after enabling the globalredirect_admin module. In Drupal 6, the settings page is bundled into the module.
Provides a field-collection field, to which any number of fields can be attached.
A field collection is internally represented as an entity, which is embedded in the host entity. Thus, if desired field collections may be viewed and edited separately too.
Strongarm gives site builders a way to override the default variable values that Drupal core and contributed modules ship with. It is not an end user tool, but a developer and site builder tool which provides an API and a limited UI.
Display Suite allows you to take full control over how your content is displayed using a drag and drop interface. Arrange your nodes, views, comments, user data etc. the way you want without having to work your way through dozens of template files. A predefined list of layouts (D7 only) is available for even more drag and drop fun!
By defining custom view modes (build modes in D6), you can define how one piece of content should be displayed in different places such as teaser lists, search results, the full node, views etc.
File entity provides interfaces for managing files. It also extends the core file entity, allowing files to be fieldable, grouped into types, viewed (using display modes) and formatted using field formatters. File entity integrates with a number of modules, exposing files to Views, Entity API, Token and more.
File Entity is required by the 7.x-2.x branch of the Media module.
The File entity project is not compatible with Media 7.x-1.x. You must use the File entity module bundled with Media 7.x-1.x.
The basic email field type is in core now: #1668332: Add an E-mail field type into core, making this contrib module obsolete. Specific formatters (like the contact form) can live in separate contrib modules.
Block Class allows users to add classes to any block through the block's configuration interface. By adding a very short snippet of PHP to a theme's block.tpl.php file, classes can be added to the parent <div class="block ..."> element of a block. Hooray for more powerful block theming!
Small-screen compatible. (<select> and vertical accordions)
Window width (client-side) and UA string (client-side and server-side) detection for touch and small screen plugins, plus Modernizr support, but no CSS media-queries.
Address Field defines a new field type to store international postal addresses, implementing a subset of the top-level address elements defined in the xNAL standard (see the glossary below).
The field configuration lets you determine which elements of an address should be present in the field widget form and which ones should be rendered for display.
This module was initially developed to support address storage in Drupal Commerce customer profiles, but it is now used by a wider variety of modules dealing with physical addresses and mapping.
Features
Standardized storage of international postal addresses based on the xNAL standard (the same format used by Google Maps for geocoding)
Per-country edit form and formatting of addresses
Proper formatting of address forms and output on a country by country basis as they are added to the module; see the address formats issue queue for pending country support
Requires Views and the Date API (packaged with the Date module).
This module will display any Views date field in calendar formats, including CCK date fields, node created or updated dates, etc. Switch between year, month, and day views. Back and next navigation is provided for all views. Lots of the Calendar functionality comes from the Date module, so any time you update the Calendar module you should be sure you also update to the latest version of the Date module at the same time.
See also Date iCal, a project that contains code and features needed to either import or export dates using iCal feeds. The functionality that used to be in the Calendar iCal module has been moved into that module.
Be sure to read Debugging Information before reporting a problem. Going through those steps may resolve your problems and will help provide enough information to tell if this is a bug.